/Engine/Plugins/Runtime/MeshModelingToolset/Source/MeshModelingTools/Public/EditMeshPolygonsTool.h
Bevel the selected edges, replacing them with angled faces
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(CallInEditor, Category=EdgeEdits, Meta=(DisplayName="Bevel", DisplayPriority=4)) void Bevel()